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12222020202 = 237291000481
BaseRepresentation
bin10110110000111110…
…10011101001101010
31011112202212221210220
423120133103221222
5200012314121302
65340440150510
7611605312650
oct133037235152
934482787726
1012222020202
115202014747
122451168436
1311ca15b922
1483d2d2dd0
154b7ec94bc
hex2d87d3a6a

12222020202 has 16 divisors (see below), whose sum is σ = 27936046272. Its totient is φ = 3492005760.

The previous prime is 12222020191. The next prime is 12222020203. The reversal of 12222020202 is 20202022221.

It is a super-2 number, since 2×122220202022 (a number of 21 digits) contains 22 as substring.

12222020202 is a modest number, since divided by 20202 gives 12222 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12222020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145500199 + ... + 145500282.

It is an arithmetic number, because the mean of its divisors is an integer number (1746002892).

Almost surely, 212222020202 is an apocalyptic number.

12222020202 is an abundant number, since it is smaller than the sum of its proper divisors (15714026070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222020202 is a wasteful number, since it uses less digits than its factorization.

12222020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291000493.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 12222020202 its reverse (20202022221), we get a palindrome (32424042423).

The spelling of 12222020202 in words is "twelve billion, two hundred twenty-two million, twenty thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 291000481 582000962 873001443 1746002886 2037003367 4074006734 6111010101 12222020202